20023210 has 16 divisors (see below), whose sum is σ = 37204992. Its totient is φ = 7750800.

The previous prime is 20023187. The next prime is 20023259. The reversal of 20023210 is 1232002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31986 + ... + 32605.

It is an arithmetic number, because the mean of its divisors is an integer number (2325312).

Almost surely, 2^20023210 is an apocalyptic number.

20023210 is a deficient number, since it is larger than the sum of its proper divisors (17181782).

20023210 is a wasteful number, since it uses less digits than its factorization.

20023210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64629.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 20023210 is about 4474.7301594621. The cubic root of 20023210 is about 271.5467237886.

Adding to 20023210 its reverse (1232002), we get a palindrome (21255212).

The spelling of 20023210 in words is "twenty million, twenty-three thousand, two hundred ten".